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Aug. 11th, 2008


midbar

(no subject)

Hello,
If I am wrong in posting my issue here, correct me.
I am developing virtual map using Google maps API.
The result can be seen here.
I want to let a user printing the selected part of the map.
For this purpose, I use a small javascript function, which is called by link "Print map":
codeCollapse )
The problem is that Internet Explorer normally prints out Map area, but FireFox doesn't. FireFox corrupts Map's area so that only last 10px are shown. The same problem with Safari. I suspect that this is common problem for all Gecko based browsers.

Maybe some of you resolved this issue somehow?
Thank you in advance for any help

Apr. 22nd, 2008

map brain

gcpmaps

USGS Announces "Imagery For Everyone"

Imagery for Everyone






RESTON, VA – The USGS Landsat archive is an unequalled 35-year record of the Earth’s surface that is valuable for a broad range of uses, ranging from climate change science to forest management to emergency response, plus countless other user applications. Under a transition toward a National Land Imaging Program sponsored by the Secretary of the Interior, the USGS is pursuing an aggressive schedule to provide users with electronic access to any Landsat scene held in the USGS-managed national archive of global scenes dating back to Landsat 1, launched in 1972. By February 2009, any archive scene selected by a user – with no restriction on cloud cover – will be processed automatically to a standard product recipe, using such parameters as the Universe Transverse Mercator projection, and staged for electronic retrieval.

In addition, newly acquired scenes meeting a cloud cover threshold of 20% or below will be processed to the standard recipe and placed on line for at least three months, after which they will remain available for selection from the archive.

Newly acquired, minimally cloudy Landsat 7 Enhanced Thematic Mapper Plus (ETM+) data covering North America and Africa are already being distributed by the USGS over the Internet at no charge, with expansion to full global coverage of incoming Landsat 7 data to be completed by July 2008 (see timeline below). The full archive of historical Landsat 7 ETM+ data acquired by the USGS since launch in 1999 will become available for selection and downloading by the end of September 2008. At that time, all Landsat 7 data purchasing options from the USGS, wherein users pay for on-demand processing to various parameters will be discontinued.

By the end of December of 2008, both incoming Landsat 5 Thematic Mapper (TM) data and all Landsat 5 TM data acquired by the USGS since launch (1984) will become available, with all Landsat 4 TM (1982-1985) and Landsat 1-5 Multi-Spectral Scanner (MSS) (1972-1994) data becoming available by the end of January 2009. All Landsat data purchasing options from the USGS will be discontinued by February 2009, once the entire Landsat archive can be accessed at no charge.

Landsat scenes can be previewed and downloaded using the USGS Global Visualization Viewer at http://glovis.usgs.gov [under “Select Collection” choose Landsat archive: L7 SLC-off (2003-present)]. Scenes can also be selected using the USGS Earth Explorer tool at http://earthexplorer.usgs.gov [under “Select Your Dataset” choose Landsat Archive: L7 SLC-off (2003-present)]. For further information on Landsat satellites and products, see http://landsat.usgs.gov

Source : http://landsat.usgs.gov/
Tags: , ,

Mar. 29th, 2008

map brain

gcpmaps

Earth Hour

Source:  http://www.google.com/intl/en/earthhour/

"Google users in the United States will notice today that we "turned the lights out" on the Google.com homepage as a gesture to raise awareness of a worldwide energy conservation effort called Earth Hour. As to why we don't do this permanently - it saves no energy; modern displays use the same amount of power regardless of what they display. However, you can do something to reduce the energy consumption of your home PC by joining the Climate Savers Computing Initiative.

On Saturday, March 29, 2008, Earth Hour invites people around the world to turn off their lights for one hour – from 8:00pm to 9:00pm in their local time zone. On this day, cities around the world, including Copenhagen, Chicago, Melbourne, Dubai, and Tel Aviv, will hold events to acknowledge their commitment to energy conservation.

Given our company's commitment to environmental awareness and energy efficiency, we strongly support the Earth Hour campaign, and have darkened our homepage today to help spread awareness of what we hope will be a highly successful global event."
map brain

gcpmaps

Penguin Digital delivers “The 21 Steps” via Google Earth

Product Review: “The 21 Steps” by Charles Cumming (Penguin Digital)
by Christine Bush for EarthSatelliteMaps.com
Date: 2008-08-24
Source: http://wetellstories.co.uk/stories/week1/

KML, the XML-based language used by Google Earth, allows the geospatial data service to be extended in surprising ways. One example of its extensibility can be found in an interesting promotion in progress now by Penguin Digital, the electronic branch of Penguin Press. Penguin Digital has invited contemporary writers to re-imagine some of Penguin’s classic publications into not only new tales but new media. The first of these is an homage to John Buchan’s 1915 “shocker”, “The 39 Steps” (Buchan, John. The Thirty-Nine Steps. London: Hodder and Stoughton, 1915.) The new version is called “The 21 Steps” and is retold by Charles Cummings and delivered online at a web site (that embeds Google Earth) by alternate reality gaming shop Six To Start.

When I first opened the page and realized what I was seeing, I admit to being pretty excited. Realizing that this was a “first” (at least for me, and spend I good amount of time looking for this kind of stuff), I allowed myself to sit back and just enjoy the experience with an uncritical approach and my expectations were met, and in some cases, exceeded. The story itself is adventurous without being to complex. This gives the user mental space to explore the Google Earth context into which the text of story has been placed. And it is a visually compelling context with good resolution (if not a bit strongly shadowed) orthophotography of London in the first few chapters and of Scotland later in the yarn.

I’m not a fast reader and I made it through the whole tale at a casual pace in the course of a weekend. I experienced no glitches in delivery and only had to refresh to get the imagery to tile correctly once or twice. I used a modestly robust wireless connection to a DSL router in my home office to connect. It would be nice if you could more easily hop around among chapters. The programming of the story is solid and makes good use of many of KML’s more sophisticated capabilities, like the ability to show progress through space over time. I would enjoy more non-map graphic elements being included in the story, such as pictures of the main characters and significant items — not to say those that were included are not appreciated.
So, we can now begin to place our books into a geospatial context. What are the questions and issues that this presents us? Here are a few, in no particular order:

* Are there certain kinds of books or stories that will most benefit from being delivered in a geospatial context?
* How can we better exploit the data and information made available to the author by geospatial placement?
* Is it necessary, or even desirable, to have every piece of the story tied to a specific place?
* Is this a slippery slope away from the summit of pure literature into the valley of visual entertainment?

Some of these questions evoke straight forward answers, others are more elusive. Read the book.

Mar. 27th, 2008

map brain

gcpmaps

The Face of GIS

Source: http://joesonic.com/blog/2008/03/27/im-a-fan-of-simplicity/

Tags:

Feb. 22nd, 2008

map brain

gcpmaps

ESRI Goes For Small Town Market Share

Exceprt from press release:
"Redlands, CA — Geographic information system (GIS) software leader ESRI recently announced an enterprise license agreement (ELA) program that provides local governments in the United States with populations of less than 100,000 with wide access to GIS software at an affordable price. Several government agencies have already taken advantage of this program since it was announced last month.

The Small Municipal and County Government ELA Program makes available deployments of ESRI's full complement of ArcGIS software and extensions. The three-tier pricing schedule is based on population."


I hope that this offering will help GIS saavy folks get more involved with their local government.  If you're one of them, I recommend you start working immediately with your city council representatives regarding making the data they develop under this new end-user license agreement (ELA) available to the public at cost. 

For more information on this see the Open Data Consortium.

Feb. 21st, 2008

map brain

gcpmaps

Covering New Terrain

Last November, the Google Maps web service  began offering  a terrain layer.

Source:  http://google-latlong.blogspot.com/2007/11/explore-new-terrain.html

Invitation:  Please post here about how you are using this feature, or why you aren't.

Feb. 18th, 2008

map brain

gcpmaps

Good Magician's Welcome Message

I've revised the Community Profile page but wanted to save good_magician's text from that space, so here it is.

---gcpmaps

|||||||||||||||||||||||||||||||||||||||||||

Hello all, good_magician here.  I have recently adopted this community from a now deleted user account ("hoffman_log") who started doing this in his personal LJ once Google Maps launched their satellite images and it became a roaring success.

This community isn't so much about Google Maps, as it's about what interesting things we can see using Google Maps!  Any members of this community may post a picture (behind a cut, please!) and challenge other members to guess what each image is!

My rules are as follows, and I will encourage any posters to follow them as well:

1) An initial hint will be given with each picture
2) Users may ask yes/no questions, and any answers to these questions will be considered an additional hint
3) There may be only 10 hints per picture, including the initial hint.  This means only 9 questions can be taken for hints.
4) Should there be a deluge of questions, I (the poster) will choose the question I feel to be the most beneficial to identifying the location.
5) You can guess as often as you want, but please don't make fifty back-to-back posts, or the same number of guesses in a single post.

With that said, let's see what becomes of this community!

Feb. 21st, 2008

map brain

gcpmaps

Citrix and ESRI present Webinar on Securing your ESRI applications

Webinar Topic:  "How to Accelerate, Optimize and Secure your ESRI  Apps"
Date: March 12, 2008 at 2:00 PM EDT/ 11:00 AM PDT  (60 Minutes)
Sponsors:  Citrix, ESRI
Registration:  http://preview.tinyurl.com/29bwu7

"Join the CIO of the National Association of Counties and two IT professionals of the Southwest Florida Management District discuss how to extend the value of your GIS software through an application delivery solution that enables more people, in more locations, on any device or network to enjoy high performance and secure access."
If you have some great geospatial data and you want to share it without giving it away, this sounds like a good event for you. 
--- C.Bush

Feb. 19th, 2008

map brain

gcpmaps

Installing GeoServer on Mac OS X

GeoServer (see http://www.GeoServer.org ) is an open source map server:

"GeoServer is an Open Source server that connects your information to the Geospatial Web.

With GeoServer you can publish and edit data using open standards. Your information is made available in a large variety of formats as maps/images or actual geospatial data. GeoServer's transactional capabilities offer robust support for shared editing. GeoServer's focus is ease of use and support for standards, in order to serve as 'glue' for the geospatial web, connecting from legacy databases to many diverse clients.

GeoServer supports WFS-T and WMS open protocols from the OGC to produce JPEG, PNG, SVG, KML/KMZ, GML, PDF, Shapefiles and more..."

However, there is a bit more to installing it on the Mac than the Quick Start Guide suggests.  I had some trouble unzipping the binary distribution install files on an Intel Core Duo Mac Mini, and you also need to know how to set some environment variables and be comfortable working from the command line to start and stop the server.  I got around the unzipping issue by downloading to a PowerPC iMac and using DiskUtility to create a .dmg file of the unzipped contents and then uploaded and installed the .dmg without a problem to the MacMini.

Once you've unzipped the files you simply place the folder where you want it (I put it in my Applications directory).  Next you'll need to set at least one environment variable:  JAVA_HOME.  You can do this several ways.  If you just want to test things out, then you can launch a Terminal window and use the bash or tcsh to export or setenv JAVA_HOME to /Library/Java/Home where the Mac OS already has Java ready and waiting for you.  (See http://lists.apple.com/archives/unix-porting/2007/Dec/msg00036.html for differences and glitches between OS and shell settings.)

However, if you plan to use GeoServer regularly this routine will get old very quickly and you'll want to permanently set the environment variable by creating an environment.plist file in a new .MacOSX folder in the root of your user directory.   This is easily done using one of the Developer Tools you should have installed with your OS.  If you didn't install the Developer Tools, do so making sure to also install X11 if you haven't done that yet either.

Then, learn to use the Property List Editor application here:
http://developer.apple.com/qa/qa2001/qa1067.html

After you've correctly setup the environment.plist file, you'll want to logout and back in before launching GeoServer.  To launch you open a Terminal or X11 window and change directories to wherever you placed the GeoServer folder, for example:

cd /Applications/geoserver/
sudo ./bin/startup.sh
You'll be prompted for your user password, and then you'll see the verbose GeoServer output begin.  The first time to you run it will take a few minutes, but then when the output seems to complete, reduce the window -- DO NOT CLOSE IT -- and open a browser.  Go to:

             http://localhost:8080/geosever

           You should see Welcome To GeoServer page load.
   
           A common "gotcha" is if you have another service using port 8080, such as Oracle XE, then you'll need to change the port following the directions at http://geoserver.org/pages/viewpage.action?pageId=1278052.  This simply involves editing an XML file which can be accomplished using any text editor -- just don't use a big old word processor that may corrupt it.

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